Telephone & Switchboard Cables
- Low Attenuation
- Minimized Cross Talk
- Flame Retardant Jacket
Applications : Recommended for switchboard and internal telephone wiring in high rise buildings, offices, factories, hotels, residential complexes, transmission of analog and digital signals, internal wiring in faxes, modems, alarm enunciators, data recording / acquisition systems and various communication devices.
Conductor : The central conductor is made solid electrolytic grade of copper.
Insulation : Premium quality grade polyethylene used on a special extruder, with several online testing equipments.
Twisted Pairs : The cores are carefully twisted with suitable lays and bunched together.
Ripcord : A nylon rip cord is provided in order to safely peel off the jacket.
Sheath : The laid up pairs are jacketed with special Flame Retardant (FR) compound to resist flame.
Marking : The cables are marked ”RATNA COM FR".
Packing : Normally available in 100m coils shrink-wrapped. Higher lengths available on special order.
Specifications : ITD-S/WS 113C & 114C
Construction Parameters :
Conductor Area (sq. mm)
Approx. Overall Diameter
Solid Annealed Bare Copper, 0.5 mm
High Density Polyethylene
Avg. 0.2 mm
Flame Retardant PVC
92.20 Ω/Km max.
50 nF/Km max.
Insulation Resistance in Air
Capacitance Unbalance - pair to pair
250 pF/100m max.
Capacitance Unbalance - pair to ground
330 pF/100m max.